[PATCH v3 10/25] iommu/sun50i: Drop IOVA cookie management

From: Robin Murphy
Date: Wed Aug 04 2021 - 13:16:45 EST


The core code bakes its own cookies now.

CC: Maxime Ripard <mripard@xxxxxxxxxx>
Signed-off-by: Robin Murphy <robin.murphy@xxxxxxx>

---

v3: Also remove unneeded include
---
drivers/iommu/sun50i-iommu.c | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
index 181bb1c3437c..92997021e188 100644
--- a/drivers/iommu/sun50i-iommu.c
+++ b/drivers/iommu/sun50i-iommu.c
@@ -7,7 +7,6 @@
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/dma-direction.h>
-#include <linux/dma-iommu.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/errno.h>
@@ -610,14 +609,10 @@ static struct iommu_domain *sun50i_iommu_domain_alloc(unsigned type)
if (!sun50i_domain)
return NULL;

- if (type == IOMMU_DOMAIN_DMA &&
- iommu_get_dma_cookie(&sun50i_domain->domain))
- goto err_free_domain;
-
sun50i_domain->dt = (u32 *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
get_order(DT_SIZE));
if (!sun50i_domain->dt)
- goto err_put_cookie;
+ goto err_free_domain;

refcount_set(&sun50i_domain->refcnt, 1);

@@ -627,10 +622,6 @@ static struct iommu_domain *sun50i_iommu_domain_alloc(unsigned type)

return &sun50i_domain->domain;

-err_put_cookie:
- if (type == IOMMU_DOMAIN_DMA)
- iommu_put_dma_cookie(&sun50i_domain->domain);
-
err_free_domain:
kfree(sun50i_domain);

@@ -644,8 +635,6 @@ static void sun50i_iommu_domain_free(struct iommu_domain *domain)
free_pages((unsigned long)sun50i_domain->dt, get_order(DT_SIZE));
sun50i_domain->dt = NULL;

- iommu_put_dma_cookie(domain);
-
kfree(sun50i_domain);
}

--
2.25.1